/*
 * The MIT License
 *
 * Copyright 2012-2014 Zafar Khaja (zafarkhaja@gmail.com).
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */

package com.github.zafarkhaja.semver.expr;

import com.github.zafarkhaja.semver.Version;

/**
 * Expression for the logical "and" operator.
 *
 * @author Zafar Khaja (zafarkhaja@gmail.com)
 * @since 0.7.0
 */
public class And implements Expression {

  /**
   * The left-hand operand of expression.
   */
  private final Expression left;

  /**
   * The right-hand operand of expression.
   */
  private final Expression right;

  /**
   * Constructs a {@code And} expression with the left-hand and right-hand operands.
   *
   * @param left
   *          the left-hand operand of expression
   * @param right
   *          the right-hand operand of expression
   */
  And(Expression left, Expression right) {
    this.left = left;
    this.right = right;
  }

  /**
   * Checks if both operands evaluate to {@code true}.
   *
   * @param version
   *          the version to interpret against
   * @return {@code true} if both operands evaluate to {@code true} or {@code false} otherwise
   */
  @Override
  public boolean interpret(Version version) {
    return left.interpret(version) && right.interpret(version);
  }

  public Expression getLeft() {
    return left;
  }

  public Expression getRight() {
    return right;
  }
}
